Surf Forecasts:
Kennebunk Beach surf forecast from 17 Aug 2026:
- Best quality surf: Tuesday 18 Aug, 11PM (local time) - 4.5ft (1.3m), 8s period, SE swell with cross-offshore winds.
- Most powerful swell: Tuesday 18 Aug, 11PM (local time) - 4.5ft (1.3m), 8s period, SE swell with 229 kJ wave energy.
- Next surfable swell (1★+): Tuesday 18 Aug, 11PM (local time) - 4.5ft (1.3m), 8s period with SE swell.
Best Forecast Surf Conditions for Kennebunk Beach this week:
The surf forecast for Kennebunk Beach over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Tuesday (Aug 18) at 11PM. The primary swell is predicted to be 1.3m and 8s period. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Kennebunk Beach in the next 16 days are 1.3m 8s and forecast to arrive on Tuesday (Aug 18) at 11PM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.6m 4s period and expected on Thursday (Aug 20) at 2AM.
| Wave Type | Time (EDT) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 11PM (Tue 18th Aug) | 4.5ft (1.3m) 8s |
| Best Surf | 11PM (Tue 18th Aug) | 4.5ft (1.3m) 8s |
| Most Powerful | 11PM (Tue 18th Aug) | 4.5ft (1.3m) 8s |
Table - best surf conditions forecast for Kennebunk Beach over the next 16 days.
The Lowdown
G'day, Rusty here. Look, I’ve stared at the charts for Kennebunk Beach and I’m not gonna sugarcoat it – this 16-day window is a real struggle. We’ve got a long, quiet stretch ahead with very little to get excited about. The water is sitting at 67°F, which is a touch warmer than normal for this time of year, so at least you won't be freezing while you’re waiting for a wave that never comes.
The first real chance of anything rideable doesn’t show up until Tuesday the 25th of August. That morning brings a bump in swell to 6ft from the SSE, but with a short period of 6 seconds and a light cross-shore wind, it’s messy and weak. The combined energy is only moderate (167). By the afternoon, the swell jumps to 8ft from the same direction, but the period is still short at 7 seconds, and the cross-onshore wind makes it lumpy. This is expert territory – too big and chopped for most.
The first half-decent window appears on Wednesday the 26th of August. The morning sees 4ft SSE swell with a light cross-offshore breeze, cleaning things up a bit. It’s still ordinary, but the combined energy is moderate (279) and at least the wind is cooperating. The afternoon gets messier again.
Thursday the 27th of August shows some promise. The SE swell runs at 3ft with a long period of 12 seconds, and the wind is light and cross-offshore, keeping it clean. The combined energy kicks up to 306 (moderate), and those long-period lines might offer a bit of shape, though at a beach break they could be a bit straight. Still, it’s the best we’ve seen.
The real standout, and the only one I’m taking a punt on, is Friday the 28th of August. The afternoon session has a 5ft SE swell with a long period of 13 seconds, clean cross-offshore winds, and a combined energy of 1292 – that’s strong, full of power. This is your best bet for some proper, punchy waves. The period is long enough to hold shape, and the wind is clean. It’s still a week away, so keep an eye on it, but it’s the only beacon in this long flat spell.
After that, we’re back to small, weak, and onshore junk. There’s a massive gap from the 29th of August right through to the 1st of September – nothing but tiny dribble and choppy wind. A few mornings go glassy, but the swell is barely a ripple.
So, to sum it up: if you’re desperate, the 27th and 28th of August are your best shouts, with Friday the 28th afternoon being the clear winner. The rest of the time, you’re better off finding something else to do. This run is a tough one, but forecasts can change – fingers crossed.
Rusty.
Short Range ForecastModerate rain (total 11mm), heaviest on Mon morning. Warm (max 24°C on Wed afternoon, min 18°C on Mon morning). Wind will be generally light. | Days 4-6 Weather SummaryLight rain (total 4mm), mostly falling on Thu night. Warm (max 22°C on Sat afternoon, min 17°C on Thu night). Wind will be generally light. | ||||||||||||||||||||
Monday 17 | Tuesday 18 | Wednesday 19 | Thursday 20 | Friday 21 | Saturday 22 | Sunday 23 | |||||||||||||||
AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | |
Swell Height Map | |||||||||||||||||||||
Wave Height (m) Direction Period (s) | S 6 | S 5 | SSE 5 | SE 9 | SE 6 | SE 8 | SE 7 | ESE 7 | SE 7 | SE 7 | SE 7 | SE 8 | ESE 8 | ESE 8 | ESE 8 | ESE 8 | ESE 7 | ESE 7 | ESE 7 | SE 7 | SE 12 |
Wave Graph | |||||||||||||||||||||
133 | 85 | 26 | 12 | 30 | 214 | 89 | 40 | 44 | 54 | 42 | 22 | 51 | 43 | 42 | 37 | 31 | 21 | 19 | 14 | 35 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-on | glassy | off | off | cross-on | cross-on | cross-on | cross-off | off | cross-off | cross-off | glassy | cross | glassy | cross-on | cross | on | cross-on | cross-on | on |
High Tide | 3:26PM2.88m | 3:53AM2.63m | 4:12PM2.79m | 4:45AM2.46m | 5:01PM2.69m | 5:42AM2.32m | 5:55PM2.61m | 6:41AM2.23m | 6:52PM2.56m | 7:42AM2.20m | 7:51PM2.56m | 8:41AM2.23m | 8:47PM2.61m | ||||||||
Low Tide | 9:08AM0.08m | 9:38PM0.15m | 9:54AM0.26m | 10:30PM0.26m | 10:42AM0.42m | 11:27PM0.36m | 11:35AM0.56m | 00:28AM0.44m | 12:33PM0.65m | 1:31AM0.46m | 1:33PM0.67m | 2:31AM0.44m | 2:31PM0.64m | 3:25AM0.38m | |||||||
5:48 | — | — | 5:50 | — | — | 5:50 | — | — | 5:52 | — | — | 5:52 | — | — | 5:54 | — | — | 5:54 | — | — | |
— | 7:42 | — | — | 7:40 | — | — | 7:38 | — | — | 7:37 | — | — | 7:36 | — | — | 7:34 | — | — | 7:32 | — | |
mm | 3 | 4 | 3 | 1 | — | — | — | — | — | 1 | 1 | 2 | — | — | — | — | — | — | — | 1 | 4 |
Temp °C | 19 | 19 | 19 | 19 | 21 | 20 | 23 | 24 | 23 | 19 | 21 | 18 | 21 | 21 | 20 | 21 | 22 | 20 | 22 | 22 | 20 |
Feels °C | 18 | 19 | 20 | 20 | 22 | 22 | 23 | 23 | 25 | 20 | 21 | 20 | 23 | 21 | 21 | 21 | 22 | 21 | 22 | 22 | 21 |
Swell 1 Height (m) Direction Period (s) | — | SE 10 | SSE 5 | SE 5 | SE 6 | SE 8 | SE 7 | ESE 7 | SE 7 | SE 7 | SE 7 | ESE 6 | ESE 8 | ESE 8 | ESE 8 | ESE 8 | ESE 7 | ESE 7 | ESE 7 | SE 7 | SSE 4 |
— | 4 | 26 | 11 | 30 | 214 | 89 | 40 | 44 | 54 | 42 | 22 | 51 | 43 | 42 | 37 | 31 | 21 | 19 | 11 | 6 | |
Swell 2 Height (m) Direction Period (s) | — | — | SE 9 | SE 9 | SE 8 | — | SE 9 | SSE 7 | S 4 | — | E 8 | SE 8 | E 8 | SE 14 | SE 14 | SE 13 | SE 13 | ESE 12 | ESE 12 | ESE 12 | SE 12 |
— | — | 13 | 12 | 18 | — | 13 | 27 | 13 | — | 1 | 15 | 1 | 8 | 8 | 7 | 7 | 15 | 15 | 14 | 35 | |
Swell 3 Height (m) Direction Period (s) | — | — | — | S 6 | — | — | SE 9 | SE 9 | SE 8 | — | E 10 | E 8 | SE 15 | E 14 | E 14 | SE 13 | SE 13 | SE 9 | SE 12 | SSE 7 | ESE 7 |
— | — | — | 3 | — | — | 21 | 13 | 18 | — | 2 | 12 | 8 | 4 | 4 | 7 | 7 | 3 | 6 | 4 | 9 | |
Wind waves Height (m) Direction Period (s) | S 6 | S 5 | — | — | NE 3 | — | — | SSE 2 | SW 4 | — | E 4 | E 4 | ENE 4 | — | — | — | — | — | — | SSE 3 | WNW 3 |
133 | 85 | — | — | 1 | — | — | 1 | 8 | — | 9 | 7 | 5 | — | — | — | — | — | — | 2 | 4 | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 378 | 299 | 209 | 216 | 216 | 11 | 62 | 136 | 11 | 163 | 876 | 11 | 11 | 464 | 11 | 690 | 510 | 11 | 62 | 442 | 62 |
Best forecast wave conditions in Maine | |||||||||||||||||||||
Best forecast wave conditions in United States | |||||||||||||||||||||
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Information about the Kennebunk Beach Surf forecast
The above surf forecast table for Kennebunk Beach provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Kennebunk Beach can be found by selecting the local surf guide option on the grey menu. Our Kennebunk Beach surf forecast is unique since it includes wave energy (power) that defines the real feel of the surf rather than just the height or the period. If you surf the same spot (Kennebunk Beach) regularly then make a mental note of the wave energy from the surf forecast table each time you go. Very soon you may start to choose your surf days based on the wave energy alone combined with our forecast of favourable offshore wind conditions. Our star ratings will help here and of course you will also find the usual wave height and period predictions on our surf forecasts as well as a full break down of the swell components under our advanced users option (to reveal that, click the little Einstein character under the tide times).
Further information to help with frequently asked questions about our surf forecast for Kennebunk Beach may be found under the help tab on the top menu and also by moving your mouse over the question marks on the surf forecast table itself. Please always bear in mind that the forecast is for near-shore open water and local factors at each surf break influence the actual breaking wave height, such as the beach / reef profile, water depths offshore and shelter.
Kennebunk Beach is 17 km (11 miles) from Biddeford. If you plan a vacation in Maine, look for hotels and other accommodation in Biddeford. Biddeford has rooms for a wide range of budgets as well as car hire and transport links.











